the referendum by mohammed morsi has polarized egypt. leading to violent clashes between pro and anti-government groups. another round of voting takes place this coming week. >>> and former south african president nelson mandela is recovering this morning from surgery to have gallstones removed. the 94-year-old was initially hospitalized eight days ago with the recurrence of a lung infection. this is the second time that he's been hospitalized this year. but hanging in there. >> around the world wishing him the best. >> yeah. >> all right, ron, thank you. >>> time for weather and over to ginger zee. hey, ginger. >> good morning, bianna. good morning, everyone. it was an icy, messy just disaster in parts of minnesota yesterday because of this low pressure system. first came the snow, then kind of this wintry mix and you had a lot of slide-offs. that same type of energy is now moving to the north and east so parts of new england tonight through early tomorrow are in winter weather advisories. winter storm warnings even. south of the mid-at